Rule History

SID: 2019345 • Source: et/open

Versions (4)

Version DetailsCurrent

Rev: 3 • Oct 3, 2014, 12:00 PM

Message:

ET MALWARE Possible CryptoLocker TorComponent DL

Rule:

alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Possible CryptoLocker TorComponent DL"; flow:from_server,established; flowbits:isset,FakeIEMinimal; file_data; byte_extract:1,0,size,relative; content:"|00 00 00|"; within:3; content:!"|00|"; within:size; content:"|00|"; distance:size; within:1; pcre:"/^.\x00\x00\x00[a-z0-9]+?\x00/s"; reference:url,malware-traffic-analysis.net/2014/10/01/index.html; classtype:trojan-activity; sid:2019345; rev:3; metadata:created_at 2014_10_03, deprecation_reason Relevance, confidence Medium, signature_severity Major, updated_at 2024_04_08;)

Created:

Oct 3, 2014, 12:00 PM

Updated:

Apr 8, 2024, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

May 30, 2025, 12:04 AM

Filename:

rules/emerging-malware.rules